Magnetic moments

The role of complex surface defect on the magnet at the (110) surface of bismuth sodium titanate (Bi0.5Na0.5TiO3) was discussed based on the first-principles calculation. The first-principle calculations for various types of surface defects exhibited the existence of magnetic moments for selected chemical and position defects.

15p dianmotminh02 03-05-2024 3 2   Download

Part 1 book "Quantum physics" by author Robert Eisberg includes content: Thermal radiation and Planck's postulate; photons — particlelike properties of radiation; de Broglie's postulate — wavelike properties of particles; Bohr's model of the atom; Schrödinger's theory of quantum mechanics; solutions of time independent Schrödinger equations; one electron atoms; magnetic dipole moments, spin, and transition rates; multielectron atoms — ground states and x-ray excitations.

364p muasambanhan10 06-04-2024 1 0   Download

Ebook "Lanthanide metal-organic frameworks" consists of two keywords, “lanthanide” and “metal-organic frameworks”, both of which are among the most active fields of research in chemistry and material science. In comparison with other types of metal ions, lanthanide ions exhibit a large atomic magnetic moment, strong spin-orbital coupling, high coordination number, and abundant coordination modes originating from their unique 4f electronic configurations.

374p tudohanhtau1006 29-03-2024 3 1   Download

Part 1 book "Quantum physics of atoms, molecules, solids, nuclei, and particles" includes content: Thermal radiation and Planck's postulate; photons — particlelike properties of radiation; de Broglie's postulate — wavelike properties of particles; Bohr's model of the atom; Schrödinger's theory of quantum mechanics; solutions of time independent Schrödinger equations; one electron atoms; magnetic dipole moments, spin, and transition rates; multielectron atoms — ground states and x-ray excitations.

364p muasambanhan07 18-02-2024 11 1   Download

Ebook "Modification of magnetic properties of iron clusters by doping and adsorption: From a few atoms to nanoclusters" is based on computations performed on unary neutral and charged iron clusters, binary iron clusters, and iron clusters interacting with carbon and oxygen atoms as well as with a number of diatomics and water. The author considers geometrical structure, thermodynamic stability and electronic properties which are compared with experimental data.

85p lamquandat 28-12-2023 5 2   Download

Over the last few years, the primary state of materials has been succesfully described via the use of a calculation method in physics - Ab initio calculations. In this paper, the results of the ab initio study on the bulk structure of iron nitride are presented.

6p vikoenigsegg 29-09-2022 10 3   Download

The signature of the magnetic competition in a nearly filled impurity band diluted magnetic semiconductors is addressed. In the formalism of the Kondo lattice model, selfconsistent equations determining the Green function of the itinerant carrier in the system are evaluated by use of the dynamical mean-field theory.

9p vimelindagates 18-07-2022 6 2   Download

The structures of the compounds were elucidated from the elemental analysis data and spectroscopic studies. The azo-oxime metal complexes were also characterized by XRD, magnetic moment, molar conductivity, and thermal analyses. Elemental analyses of the chelates suggested that the metal to ligand ratio was 1:2. It was found that the ligand acts as a bidentate bending through the phenolic oxygen and nitrogen atom of the C=N-OH group similar to most oximes.

17p langthannam 29-12-2021 15 0   Download

The Co(II), Fe(II), and Zn(II) complexes of 1-(3-phenyl)propylbenzimidazole (PPBI), 5-nitro-1-(3-phenyl) propylbenzimidazole (PPNBI), 1-[2-(4-morpholinyl)ethyl]benzimidazole (MEBI), 1-[2-(1-piperidinyl)ethyl]benzimidazole (PEBI), and 5-nitro-1-[2-(1-piperidinyl)ethyl]benzimidazole (PENBI) were synthesized and characterized by 1H NMR, 13C NMR, and elemental analyses. The magnitudes of the magnetic moments for paramagnetic complexes were between 4.07 and 5.11 B.M.

13p langthannam 29-12-2021 7 0   Download

Lecture Physics A2: Nuclear physics - PhD. Pham Tan Thi present the content fundamentals of atom and nuclei, nuclides and isotopes, magnetic moments, NMR and magnetic resonance imaging, stable nuclei and unstable nuclei,...

24p xusong 21-07-2021 28 1   Download

This paper show that the recent experimental value of the anomalous magnetic moment (AMM) of the charged lepton µ, denoted as aµ ≡ (g−2)µ /2, can be explained successfully in a 3-3-1 model with right handed neutrinos adding new heavy SU(3)L neutrino singlets. Allowed regions satisfying the recent AMM data are illustrated numerically.

10p nguyenxuankha_bevandan 14-08-2020 9 1   Download

The observation of ferromagnetism in CeCo3B2 with a high Curie temperature TC = 140 K and a magnetic moment 8 × 10−3 µB /F.U has been presented and explained by 4f itinerant magnetism with strong 4f-4f direct exchange interaction. The observed small magnetic moment can be understood by a cancellation of 4f orbital and spin contributions and of 5d polarized contribution to magnetic moment.

6p 12120609 01-06-2020 21 1   Download

Interests in Cu-Cr sub-nanometer systems have been increasing due to the recentlyfound icosahedral Cu12Cr cluster as a superatomic molecule, where the 3d-Cr and 4s-Cu electrons can phenomenologically form the 18-e molecular shell (1S2 1P6 1D10) of Cu12Cr. In this report, we set out to investigate the energetically-preferred geometries and stabilities of CunCr (n = 9÷11) clusters using the density-functional-theory calculations.

8p kequaidan3 06-03-2020 16 1   Download

In this paper, we employed density function theory to examine the effect of an external static electric field on some properties of iron thin film with the field strength varied up to 0.1V/Å.

9p vigustavia2711 19-12-2019 11 0   Download

Magnetization curves in the temperature range 88–430 K were measured by means of a vibrating sample magnetometer (VSM) from which the magnetic moment at 0 K and Curie temperature were determined.

5p viminotaur2711 29-10-2019 14 0   Download

The saturated magnetization in 20% substituted La0.8R0.2(Fe0.88Si0.12)13 (R = Sm, Tb) magneto-caloric alloys is discussed in this work. The measurements were taken up to 70 kOe (7 Tesla) to detect the saturation of magnetic moments.

5p viposeidon2711 17-09-2019 17 0   Download

The molecular Kondo effect occurs only when the magnetic impurity strongly hybridizes with conduction electrons at edge center sites of the Lieb lattice, and at the temperature range between the artificial strong coupling and the local moment regimes.

7p letanhien2309 19-02-2019 20 1   Download

Typical quantities of the electronic structure and spin-transition of this molecule such as the atomic charge, the magnetic moment of Fe ion, the HOMO-LUMO gap, and the spin-state energy difference are varied as a function of dielectric constant of solvents. They reach saturation values with increasing dielectric constant. These results should give some hints to control spin transition temperature of spin-crossover molecules.

10p thuyliebe 12-10-2018 24 0   Download

We investigate the effect of PbTiO3 on the LaAlO3/SrTiO3 hetero-structure by density functional theory, where the asymmetry sandwich not only forms a quasi-two dimensional electron gas but also reveals a ferromagnetic state in the TiO2 interfaces. It is found out that magnetic moments of TiO2 interface layers are around 0.18 µB while they are mostly negligible in the pure LaAlO3/SrTiO3 system.

7p thuyliebe 09-10-2018 23 1   Download

We investigate in detail one−loop contribution of new particles to the muon anomalous magnetic moment (g − 2)µ in the framework of the economical 3-3-1 model. The main contributions to the anomalous magnetic moment come from new neutral gauge boson Z0 , bilepton singly charged vector boson Y ±. The contributions of new neutral/charged scalars are small and can be neglected. The result is extended to other versions of 3-3-1 models. Comparing the anomalous magnetic moment value in this model with experimental value we set the extension requirement for the model.

15p thuyliebe 09-10-2018 19 0   Download